republic-os/legislation/us/states/tn/114/hb-166.md

---
type: "Bill"
title: "Redistricting, Legislative - As enacted, adds that geographic descriptions affecting part of the boundary line between Fayette County and Shelby County are to be construed as the boundary line when census descriptions, counties, voting districts (VTDs), tracts, blocks, census delineations, census district lines, and other census designations are those established for or by the United States department of commerce, bureau of the census, for taking the 2020 federal decennial census in this state as contained in the topologically integrated geographic encoding and referencing system for the composition of state congressional districts, state senatorial districts, and state house of representative districts. - Amends TCA Title 2, Chapter 16 and Title 3, Chapter 1."
description: "Redistricting, Legislative - As enacted, adds that geographic descriptions affecting part of the boundary line between Fayette County and Shelby County are to be construed as the boundary line when census descriptions, counties, voting districts (VTDs), tracts, blocks, census delineations, census district lines, and other census designations are those established for or by the United States department of commerce, bureau of the census, for taking the 2020 federal decennial census in this state as contained in the topologically integrated geographic encoding and referencing system for the composition of state congressional districts, state senatorial districts, and state house of representative districts. - Amends TCA Title 2, Chapter 16 and Title 3, Chapter 1."
jurisdiction: "us/states/tn"
legislature: "Tennessee General Assembly"
session: "114"
identifier: "HB 166"
citation: "Tennessee HB 166 (114)"
classification: ["bill"]
subjects: ["Legislative", "Redistricting"]
status: "enacted"
primary_sponsors: ["Marsh"]
version_count: 3
action_count: 25
vote_count: 5
first_action: "2025-01-15"
last_action: "2026-04-23"
source: "openstates"
source_identifier: "ocd-bill/b16a0232-b4e5-40e5-9252-e715b1f5e6bb"
source_url: "https://wapp.capitol.tn.gov/apps/BillInfo/Default?BillNumber=HB0166&ga=114"
source_hash: "aa382f40191538009748fbbe53c129555a871f142d69af5fae5dc57fe2fbc1f8"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-tn"]
---

# Tennessee HB 166 (114) — Redistricting, Legislative - As enacted, adds that geographic descriptions affecting part of the boundary line between Fayette County and Shelby County are to be construed as the boundary line when census descriptions, counties, voting districts (VTDs), tracts, blocks, census delineations, census district lines, and other census designations are those established for or by the United States department of commerce, bureau of the census, for taking the 2020 federal decennial census in this state as contained in the topologically integrated geographic encoding and referencing system for the composition of state congressional districts, state senatorial districts, and state house of representative districts. - Amends TCA Title 2, Chapter 16 and Title 3, Chapter 1.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Amendment HA0669** (committee substitute) — [source](https://capitol.tn.gov/Bills/114/Amend/HA0669.pdf)
2. **Amendment SA0930** (committee substitute) — [source](https://capitol.tn.gov/Bills/114/Amend/SA0930.pdf)
3. **Current Version** (committee substitute) — [source](https://capitol.tn.gov/Bills/114/Bill/HB0166.pdf)

## Votes

- FLOOR VOTE: REGULAR CALENDAR AS AMENDED PASSAGE ON THIRD CONSIDERATION 3/16/2026 Passed (1) — **93–0** (pass) · lower
- HOUSE STATE & LOCAL GOVERNMENT COMMITTEE: Rec. for pass. if am., ref. to Calendar & Rules Committee 3/11/2026 Passed — **19–1** (pass) · lower
- HOUSE CALENDAR & RULES COMMITTEE: H. Placed on Regular Calendar for 3/16/2026 3/12/2026 (2) — **0–0** (fail) · lower
- FLOOR VOTE: Third Consideration 3/30/2026 Passed (1) — **32–0** (pass) · upper
- HOUSE PUBLIC SERVICE SUBCOMMITTEE: Rec for pass if am by s/c ref. to State & Local Government Committee 3/4/2026 Passed — **5–0** (pass) · lower

## Sponsors

- Marsh — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-01-15** Filed for introduction `filing`
- **2025-01-16** Intro., P1C. `introduction`
- **2025-01-27** P2C, ref. to State & Local Government Committee `referral-committee`
- **2025-01-28** Assigned to s/c Public Service Subcommittee `referral-committee`
- **2026-02-19** Sponsor(s) Added. `sponsorship`
- **2026-02-25** Placed on s/c cal Public Service Subcommittee for 3/4/2026
- **2026-03-04** Placed on cal. State & Local Government Committee for 3/11/2026
- **2026-03-04** Rec for pass if am by s/c ref. to State & Local Government Committee `referral-committee`
- **2026-03-11** Placed on cal. Calendar & Rules Committee for 3/12/2026
- **2026-03-11** Rec. for pass. if am., ref. to Calendar & Rules Committee `committee-passage-favorable`
- **2026-03-12** H. Placed on Regular Calendar for 3/16/2026
- **2026-03-16** Passed H., as am., Ayes 93, Nays 0, PNV 0 `passage`
- **2026-03-16** H. adopted am. (Amendment 1 - HA0669) `amendment-passage`
- **2026-03-17** Engrossed; ready for transmission to Sen. `receipt`
- **2026-03-19** Received from House, Passed on First Consideration `introduction`
- **2026-03-30** Passed Senate, Ayes 32, Nays 0 `passage`
- **2026-03-30** Amendment withdrawn. (Amendment 1 - SA0930)
- **2026-03-30** Senate substituted House Bill for companion Senate Bill. `substitution`
- **2026-04-01** Enrolled; ready for sig. of H. Speaker. `enrolled`
- **2026-04-06** Signed by Senate Speaker `passage`
- **2026-04-06** Signed by H. Speaker `passage`
- **2026-04-07** Transmitted to Governor for his action. `executive-receipt`
- **2026-04-16** Signed by Governor. `executive-signature`
- **2026-04-23** Effective date(s) 04/16/2026
- **2026-04-23** Pub. Ch. 742

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/b16a0232-b4e5-40e5-9252-e715b1f5e6bb`. Confidence: reported (aggregated from official Tennessee legislature records).